ZOMEI Camera Filter 37MM CPL Polarizer Mobile Phone External Lens(Black)

1. Material (lens): optical glass + aluminum alloy2. CIR-PL filters allow you to remove unwanted reflections from non-metallic surfaces such as water, glass, etc.3. It can also make the colors more saturated, look sharper and have better contrast4. This effect is used to increase the contrast and saturation of the blue sky and white clouds5. Ultra-thin frame compatible with wide-angle lens6. Diameter: 37mm7. Weight: about 30 grams